1400442052 has 6 divisors (see below), whose sum is σ = 2450773598. Its totient is φ = 700221024.

The previous prime is 1400442013. The next prime is 1400442067. The reversal of 1400442052 is 2502440041.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1247078596 + 153363456 = 35314^2 + 12384^2 .

It is a super-2 number, since 2×1400442052² = 3922475882019941408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175055253 + ... + 175055260.

Almost surely, 2^1400442052 is an apocalyptic number.

It is an amenable number.

1400442052 is a deficient number, since it is larger than the sum of its proper divisors (1050331546).

1400442052 is a wasteful number, since it uses less digits than its factorization.

1400442052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350110517 (or 350110515 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 1400442052 is about 37422.4805698393. The cubic root of 1400442052 is about 1118.8066722350.

Adding to 1400442052 its reverse (2502440041), we get a palindrome (3902882093).

The spelling of 1400442052 in words is "one billion, four hundred million, four hundred forty-two thousand, fifty-two".